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Finding the Fourth Proportional to 112,215.75, 154,860.98 and 61,917.99

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Solution

The fourth proportional to 112,215.75, 154,860.98 and 61,917.99 is: 85,448.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,215.75 : 154,860.98 = 61,917.99 : x
  2. Step 2: Convert to fraction form
    112,215.75/154,860.98 = 61,917.99/x
  3. Step 3: Cross multiply
    112,215.75x = 154,860.98 × 61,917.99
  4. Step 4: Simplify right side
    112,215.75x = 9,588,680,301.44
  5. Step 5: Solve for x
    x = 9,588,680,301.44/112,215.75
  6. Step 6: Final answer
    x = 85,448.61

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